Aspects of the life histories of grass rockfish, Sebastes rastrelliger, and brown rockfish, S. auriculatus, from southern California

We collected data on age- length and length-weight relationships, age and length at first maturity, and spawning seasons of grass rockfish, Sebastes rastrelliger, and brown rock- fish, S. auriculatus, off southern Cali- fornia. In addition, we also collected data on fecundity of grass rockfish. For both species, males and females grew at the same rates and von Bertalanffy age-length parameters for grass rock- fish were l ∞ = 51.3 cm, k = 0.11, t 0 = -2.41 and for brown rockfish l ∞ = 51.4 cm, k = 0.16, t 0 = -0.55. Male and fe- male grass rockfish matured at about the same length and age, between 22 and 28 cm and between 2 and 5 yr. There was also little difference between the sexes for brown rockfish; they ma- tured between 19 and 32 cm and be- tween 3 and 6 yr. Grass rockfish spawned from January to March, peak- ing during January; brown rockfish spawned from January to June (and perhaps August), also peaking in Janu- ary. Fecundity of grass rockfish ranged from about 80,000-760,000 eggs.